• Journal of Software Engineering Society
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• v.24 no.1
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• pp.1-7
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• 2011

MVC(Model-View-Controller) architecture is well-known for high maintainability and it makes efficient development possible. Recently, it has been applied in many fields such as web, desktop and mobile applications. Therefore, effective testing for this architecture is strongly needed. Although much research has been done, there was not much efforts for exploiting MVC architecture in GUI testing. Therefore, in this paper, we propose a scheme for efficient and accurate GUI testing for MVC based applications. In this study we separate original state diagrams into view state diagram and model-controller state diagram. Then, we present a case study showing the effectiveness of our proposed scheme.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.6 no.5
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• pp.1421-1444
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• 2012

Mobile devices such as Android devices are emerging as a convenient client computing device with mobility and context-sensing capability. However, the computing power and hardware resource of the devices are limited due to their small form-factor. Consequently, large-scaled applications could not be deployed on these devices. Nonetheless, if the large-scaled applications are deployed and executed on the devices, high performance of the applications cannot be guaranteed. To remedy the limitation in terms of performance, it is inevitable to let some heavy-weight functionality executed on the server side and let a client application invoke the functionality in the server. To realize this kind of mobile applications, we adopt well-defined architecture design principles; being thin-client, being layered with Model-View-Controller (MVC), and being balanced between client side and server side. By adopting the principles, we propose a unique, ideal and practical architecture for mobile applications, called balanced MVC architecture. By considering the principles, key design considerations of realizing balanced MVC architecture lie in functionality partitioning. Hence, we define key criteria of determining the degree of performance. And, we define a method to design a balanced MVC architecture which embodies functionality partitioning for high performance, and a simulation-based evaluation method of balanced MVC architectures.

• Journal of KIISE:Computing Practices and Letters
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• v.16 no.11
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• pp.1111-1115
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• 2010

Mobile devices are utilized not only for communications but also for running applications, However, applications with high complexity could not be deployed on mobile devices which have inherent resource limitation. While Model-View-Control(MVC) is commonly used in designing applications, it does not address mobile device specific characteristics. In this paper, we propose effective mobile application architectures which extend the conventional MVC architecture, to develop mobile application with high performance while remedying their resource constraints.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.980-983
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• 2012

Nowadays, with increasing in difficulty level of elementary, junior high and high school education, we are growing more and more interested in the national history. We intend to develop the mobile App to make the people have the concern and interest in the national cultural assets to introduce the information about them. The game can be learned easily and we are increased the interest in the national cultural assets by game speed. We intent to develop the mobile App to be able to search the information about the national cultural assets at anytime and anywhere. This App uses the Model2 Architecture MVC method.

• The KIPS Transactions:PartD
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• v.16D no.3
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• pp.381-394
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• 2009

As a technique to enhance reusability for the created artifacts in software modeling process, the model driven method such like MDA has been applied. Unfortunately, the hierarchical and systematic MDA based development technique using UML is poor yet. This causes the problem that the MDA modeling with high consistency and reusability based on MDA metamodel is not being realized. To solve this problem, this paper proposes a MDA (PIM/PSM) component modeling technique using 2+1 view integrated metamodel. At first, the meta-architecture view model which can represents development process view and MVC view is defined. Then, the hierarchical integrated metamodels per view are addressed separately for modeling process and MVC at metamodel level on the hierarchy of the defined meta-architecture view model. These metamodels are defined hierarchically by layering the modeling elements in PIM and PSM pattern for UML models and GUI models. Appling the proposed metamodel to an ISMS application system, it is shown as a component modeling case study based on MDA. Through this approach, we are able to perform a component model with consistency and hierarchy corresponding to development process and MVC way. Accordingly, this may improve more independence and reusability of model.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10a
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• pp.412-414
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• 2001

전자상거래와 관련한 각종 신기술들이 쏟아져 나오고 있다. 이미 많은 EC솔루션들이 시장에 나와서 나름대로의 기술력을 인정받고 또한 수정 보완의 개선점을 찾아가고 있는 상황이다. 본 논문에서는 전자상거래 시스템의 구성 아키덱처를 MVC모델을 기반으로 하여 상품전시용 컴포넌트를 구현함으로써 기존에 제기되어진 시스템 개발 및 유지보수과정의 문제점 즉, 디자인 및 프로그램 담당자간의 원활한 의사소통 등의 문제점을 개선하고 생산성을 강화하는 등의 발전 가능성을 제고해 보고자 한다. 이에 따라 MVC모델에 관하여 연구하고, 기존의 전자상거래 시스템 개발 패턴에 대해 알아본다. 본 논문에서 MVC 모델을 통한 전자상거래 시스템용 상품 전시 컴포넌트를 구현함으로써 기존의 시스템 개발 패턴에 비한 개선점이 무엇인지 도출해 보고자 한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.11
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• pp.2153-2166
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• 2017

Web apps have a problem that they cause same data to be repetitively retrieved, processed, and displayed when web browsers load different web pages. To resolve the problem, this paper presents and evaluates a new method for restructuring of Java web apps. This approach dynamically analyzes Java web apps from the MVC (Model-View-Controller) architecture point of view and identifies redundant data by using the composite view pattern. Then the input apps are restructured in order not to load the redundant data when users make requests for new pages. This restructuring generates new web apps that conform to the MVC architecture and improve the performance of input web apps. The experimental results showed that when compared to legacy web apps, the restructured apps' response time was reduced on desktop PCs and mobile devices by 38% and 55%, respectively. In addition, case studies using open-source web apps showed the applicability of the proposed approach.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06d
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• pp.76-78
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• 2012

최근 스마트폰의 이용이 증가함에 따라서 많은 모바일 어플리케이션들이 개발되고 있다. 그 중 안드로이드 어플리케이션에서는 MVC 아키텍쳐가 사용되어서 어플리케이션의 확장성을 향상시킨다. 하지만 안드로이드 어플리케이션의 특성으로 인하여 MVC 아키텍쳐를 지키지 못하고 작성될 위험성이 존재한다. 따라서 본 논문에서는 그 위험성이 나타나게 된 원인을 분석하고 이 문제를 해결할 방안을 제시한다.

• Journal of Broadcast Engineering
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• v.17 no.6
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• pp.976-989
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• 2012

In this paper, we propose an efficient motion prediction architecture and DPB design mechanism for scalable multi-view video coding which is implemented by integrating SVC and MVC coding algorithms. In the proposed motion prediction architecture, we employ pictures associated with other views as a candidate for reference picture for improved motion prediction performance. By the proposed prediction architecture, we could enormously reduce the size of compressed video data. When performing scalable multi-view video coding, an integrated DPB design mechanism is also proposed. It is shown by various simulations that the proposed motion prediction architecture for scalable multi-view video coding can result in reduced data size in the compressed bitstream.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06a
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• pp.74-79
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• 2010

모바일 디바이스는 유연한 이동성을 제공하는 대신에 제한된 자원을 가지고 있는 휴대용 장치로서, 어플리케이션 구동을 가능하게 하는 새로운 클라이언트 단말기로 빠른 속도로 보급되고 있다. 대표적인 모바일 디바이스로는 iPhone, 안드로이든 폰이 있다. 현재 이러한 모바일 디바이스에는 엔터테인먼튼 관련 어플리케이션이 널리 사용되고 있지만, 앞으로 모바일 디바이스의 성장 및 네트워크 기술에 따라 다소 복잡한 어플리케이션을 필요로 하게 된다. 그러나, 모바일 디바이스에서 실행될 수 있는 어플리케이션의 복잡도에 제약이 발생하여 놓은 복잡도의 어플리케이션은 실행이 힘들다. GUI 어플리케이션에서 데이터와 그것을 표현하는 부분을 나누어 설계하는 MVC (Model-View-Control) 아키텍쳐는 어플리케이션을 설계하는데 일반적으로 많이 사용되고 있지만, 이는 모바일 어플리케이션의 특징을 반영하지는 못한다. 그러므로, 본 논문에서는 자원 사용의 최적화를 고려한 서비스 기반 모바일 어플리케이션을 설계하기 위하여 기존의 MVC 아키텍처를 보완/확장한다. 본 논문에서 제안하는 MVC 아키텍쳐는 어플리케이션 특성에 맞춰 모바일 어플리케이션의 특성들을 극복하여 모바일 디바이스의 한계점을 극복하는 동시에 고성능을 보장하는 모바일 어플리케이션을 개발하는데 적용할 수 있다.